3 * GtkColorSelection lets the user choose a color. GtkColorSelectionDialog is
4 * a prebuilt dialog containing a GtkColorSelection.
10 static GtkWidget *window = NULL;
13 static GtkWidget *frame;
15 /* draw callback for the drawing area
18 draw_callback (GtkWidget *widget,
22 GtkStyleContext *context;
25 context = gtk_widget_get_style_context (widget);
26 gtk_style_context_get_background_color (context, GTK_STATE_FLAG_NORMAL, &rgba);
27 gdk_cairo_set_source_rgba (cr, &rgba);
34 change_color_callback (GtkWidget *button,
38 GtkColorSelection *colorsel;
39 GtkColorSelectionDialog *selection_dialog;
42 dialog = gtk_color_selection_dialog_new ("Changing color");
44 gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (window));
46 selection_dialog = GTK_COLOR_SELECTION_DIALOG (dialog);
47 colorsel = GTK_COLOR_SELECTION (gtk_color_selection_dialog_get_color_selection (selection_dialog));
49 gtk_color_selection_set_previous_rgba (colorsel, &color);
50 gtk_color_selection_set_current_rgba (colorsel, &color);
51 gtk_color_selection_set_has_palette (colorsel, TRUE);
53 response = gtk_dialog_run (GTK_DIALOG (dialog));
55 if (response == GTK_RESPONSE_OK)
57 gtk_color_selection_get_current_rgba (colorsel, &color);
59 gtk_widget_override_background_color (da, 0, &color);
62 gtk_widget_destroy (dialog);
66 do_colorsel (GtkWidget *do_widget)
79 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
80 gtk_window_set_screen (GTK_WINDOW (window),
81 gtk_widget_get_screen (do_widget));
82 gtk_window_set_title (GTK_WINDOW (window), "Color Selection");
84 g_signal_connect (window, "destroy",
85 G_CALLBACK (gtk_widget_destroyed), &window);
87 gtk_container_set_border_width (GTK_CONTAINER (window), 8);
89 vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
90 gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
91 gtk_container_add (GTK_CONTAINER (window), vbox);
94 * Create the color swatch area
98 frame = gtk_frame_new (NULL);
99 gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
100 gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
102 da = gtk_drawing_area_new ();
104 g_signal_connect (da, "draw", G_CALLBACK (draw_callback), NULL);
106 /* set a minimum size */
107 gtk_widget_set_size_request (da, 200, 200);
109 gtk_widget_override_background_color (da, 0, &color);
111 gtk_container_add (GTK_CONTAINER (frame), da);
113 button = gtk_button_new_with_mnemonic ("_Change the above color");
114 gtk_widget_set_halign (button, GTK_ALIGN_END);
115 gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
117 gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
119 g_signal_connect (button, "clicked",
120 G_CALLBACK (change_color_callback), NULL);
123 if (!gtk_widget_get_visible (window))
125 gtk_widget_show_all (window);
129 gtk_widget_destroy (window);